Product Summary

Graphite bearings are used in both wet and dry operating conditions. Carbon-graphite allows the designer to specify the bearing close to the boundary lubricated condition without the risk of seizure. Permissible loads and running speeds depend on the allowable wear rate. Shaft materials and surface finishes are important factors in the wear rates of carbon-graphite materials. As a rule of thumb, the harder and more polished the surface, the lower the wear. When it is possible, aluminum and bronze should be avoided for use as shaft materials.

Features of Graphite bearing can be summarized as:1)excellent corrosion resistance;2)self-lubricity;3)high coefficient of heat conductivity;4) low friction factor. Graphite, on the other hand, is softer and relatively weak because of the crystalline order and closer spacing between the monoplanes and stacks. A graphite structure can be compared to a deck of cards with individual layers able to easily slide off the deck. This phenomenon gives the material a self lubricating ability which is matched by no other material. External lubricants are simply not necessary.

Graphite bearing is used for parts in non-oil lubricant machine. Such as the bearings on case-hardened equipment and coloration-equipment in printing and dyeing industry, those are all graphite bearing, which can avoid problem of pollution by lubricant oil. As the graphite has wearable specialty. A bearing for allowing the movement of a movable mirror in a Michelson interferometer includes a stationary hollow glass cylinder and a movable assembly which includes the movable mirror and at least one graphite member, the graphite member being slidablly disposed within the bore of the glass cylinder.